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  2. Printer tracking dots - Wikipedia

    en.wikipedia.org/wiki/Printer_tracking_dots

    Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and copiers produce on every printed page that identifies the specific device that was used ...

  3. Thermal paper - Wikipedia

    en.wikipedia.org/wiki/Thermal_paper

    A heat source near the paper will color the paper. Paper roll for thermal fax machine. Thermal paper (often supplied in roll form, and sometimes referred to as an audit roll) is a special fine paper that is coated with a material formulated to change color locally when exposed to heat. It is used in thermal printers, particularly in inexpensive ...

  4. AirPrint - Wikipedia

    en.wikipedia.org/wiki/AirPrint

    AirPrint is a feature in Apple Inc. 's macOS and iOS operating systems for printing without installing printer-specific drivers. Connection is via a local area network (often via Wi-Fi ), [ 1][ 2] either directly to AirPrint-compatible printers, or to non-compatible shared printers by way of a computer running Microsoft Windows, Linux, [ 3] or ...

  5. Add, edit or delete contacts in AOL Mail - AOL Help

    help.aol.com/articles/add-edit-or-delete...

    1. From AOL Mail, click the Contacts icon. 2. Click on the contact's name. 3. Click the More options icon | Edit contact. 4. Make any changes you want to the contact's info. 5. Click the Camera icon to change the contact's image. 6. Click Save.

  6. Laser printing - Wikipedia

    en.wikipedia.org/wiki/Laser_printing

    Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics (and moderate-quality photographs) by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image. [ 1] The drum then selectively collects electrically charged ...

  7. Enable or disable Enhanced Contacts in AOL Mail

    help.aol.com/articles/enable-or-disable-enhanced...

    If you disable Enhanced Contacts, any info that was previously saved from your contact's emails will be removed. 1. Click the Settings icon | select More Settings . 2. Click Contacts. 3. Click Disable next to Enhance Contacts. 4. Alternatively, click Enable if you change your mind.

  8. Thermal printing - Wikipedia

    en.wikipedia.org/wiki/Thermal_printing

    Thermal printing (or direct thermal printing) is a digital printing process which produces a printed image by passing paper with a thermochromic coating, commonly known as thermal paper, over a print head consisting of tiny electrically heated elements. The coating turns black in the areas where it is heated, producing an image.

  9. Ink cartridge - Wikipedia

    en.wikipedia.org/wiki/Ink_cartridge

    Ink cartridge. Two cartridges (one with black ink (a third-party type HP 15-compatible cartridge), one with colored inks (an original type HP 17 tri-color cartridge)) installed in an HP inkjet printer. An ink cartridge or inkjet cartridge is the component of an inkjet printer that contains the ink to be deposited onto paper during printing. [ 1]